What's the rear axle.
The rear axle refers to the component of the rear drive shaft of the vehicle power transmission. It is composed of two half-bridges and can implement the half-bridge differential motion. At the same time, it is also used to support the wheel and connect the rear wheel device. If it is a front axle driven vehicle, then the rear axle is only a follow-up bridge, which only plays a bearing role. If the front axle is not the drive axle, then the rear axle is the drive axle, this time in addition to the bearing role also play the role of drive and deceleration and differential, if it is four-wheel drive, generally in front of the rear axle is also equipped with a transfer case. The rear axle is divided into integral axle and half axle. The integral bridge is equipped with non-independent suspension, such as plate spring suspension, and the half bridge is equipped with independent suspension, such as McPherson suspension.
Front axle Rear axle refers to the front axle axle part, the front axle includes shock absorber spring, steering gear, balance shaft, etc., the rear axle also includes the drive shaft, transmission gear and so on. The rear of the multi-axle truck is also divided into drive rear axle and no drive rear axle, no drive rear axle is no drive shaft connection, does not belong to the part of the drive wheel, generally more than 3 axes of the heavy truck and traction front.
In the use of vehicles, the dirt and dust of the ventilation plug on the rear axle housing should be often removed, and the cleaning and dredging should be removed every 3000km during maintenance to ensure that the airway is smooth, so as to avoid the pressure increase in the airway housing caused by the blockage of the airway and the oil leakage at the joint surface and the oil seal. And check the lubricating oil level and oil quality, add or replace if necessary. The gear oil should be replaced when the new locomotive is maintained at 12000km, and the oil quality should be checked every 24000km during maintenance, such as discoloration and thinning, and the new oil should be replaced. When used in cold areas, winter lubricating oil should be changed in winter. When driving about 80000km for maintenance, the main reducer and differential assembly should be decomposed, the inner cavity of the axle housing should be cleaned, and the nuts of each part should be tightened according to the specified torque, and the meshing clearance of each part of the gear and the tooth surface contact impression should be adjusted.
The engine sends power to the gearbox, which is shifted to the rear axle toothed disc. The differential is a whole, inside is: There are small tooth plates in the middle of the cross column above with two asteroid gears [play a role in turning speed regulation] the differential is placed standing, there are two small round holes on both sides, there are sliding keys above, we often say that the half column is inserted in this, go straight when the cross column does not move, when the cross column moves to adjust the speed of the tires on both sides, To improve the car's maneuverability in corners!
Rear axle classification
According to the different suspension of the bridge, it is divided into integral and broken.
Integral, integral bridge with non-independent suspension, such as plate spring suspension.
Split open, split open with independent suspension, such as McPherson suspension.
Rear axle center overview
As for the large bulge in the center of the rear axle, it is only in the case that the rear axle is a drive axle, because the reduction gear and differential mechanism are put inside, so there must be a large bulge, and the rear axle is generally not a follower bridge.
Axle classification
According to the different role of the axle, the axle can be divided into drive axle, steering axle, support bridge, and steering drive axle.
The rear axle of Jiefang truck is the drive axle, and its main role is:
(1). The engine is sent out, the power from the clutch, gearbox and transmission shaft is transmitted through the reducer, so that its speed decreases, the torque increases, and the torque is transmitted to the driving wheel through the semi-shaft;
(2). Bear the load of the rear axle of the car;
(3). The reaction force and torque of the road surface are transmitted to the frame through the leaf spring;
(4). When the car is running, the rear wheel brake plays the main braking role, and when the car is parked, the rear wheel brake produces the parking brake.
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